build(deps): bump pynacl from 1.5.0 to 1.6.2

Bumps [pynacl](https://github.com/pyca/pynacl) from 1.5.0 to 1.6.2.
- [Changelog](https://github.com/pyca/pynacl/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pyca/pynacl/compare/1.5.0...1.6.2)

---
updated-dependencies:
- dependency-name: pynacl
  dependency-version: 1.6.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -16,7 +16,7 @@ paramiko==3.4.0
 pexpect==4.8.0
 ptyprocess==0.7.0
 pycparser==2.21
-PyNaCl==1.5.0
+PyNaCl==1.6.2
 pyserial==3.5
 python-dateutil==2.8.2
 pytz==2023.3